Identification of �?-SiC surrounded by relatable surrounding diamond medium using weak Raman surface phonons

Bulletin of materials science

Mohan Kumar Kuntumalla¹  Harish Ojha¹  Vadali Venkata Satya Siva Srikanth¹ 

[1] School of Engineering Sciences and Technology (SEST), University of Hyderabad, Hyderabad 500 046, India$$School of Engineering Sciences and Technology (SEST), University of Hyderabad, Hyderabad 500 046, IndiaSchool of Engineering Sciences and Technology (SEST), University of Hyderabad, Hyderabad 500 046, India$$

关键词: Carbon materials;    nanocomposites;    thin films;    Raman;    microstructure.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

It is difficult to detect �?-SiC using micro-Raman scattering, if it is surrounded by carbon medium. Here, �?-SiC is identified in the presence of a relatable surrounding diamond medium using subtle, but discernible Raman surface phonons. In this study, diamond/�?-SiC nanocomposite thin film system is considered in which nanosized �?-SiC crystallites are surrounded by a relatable nanodiamond medium that leads to the appearance of a weak Raman surface phonon band at about 855 cm^-1. Change in the nature of the surrounding material structure and its volume content when relatable, will affect the resultant Raman response of �?-SiC phase as seen in the present case of diamond/�?-SiC nanocomposite thin films.

【 授权许可】

Unknown